Robert Isom, the American Airlines CEO, has questioned why the Blackhawk military helicopter came into the path of the airline during the Potomac crash which is feared to have caused scores of deaths ...

Follow the latest updates on the Washington plane crash on Metro’s live blog. How can a military helicopter collide w ...

Boom is convinced it can overcome the barriers that grounded the Concorde and make supersonic travel affordable and greener.

A supersonic jet built by Boom Technology broke the sound barrier for the first time Tuesday, advancing its bid to resurrect ...

Current and former European and U.S. officials have raised concerns about some of Trump’s picks for top intelligence posts.

The city of Denver is giving free radon test kits online and at a library as part of Radon Action Month. Radon is a radioactive gas that can lead to cancer.